Home / 853,775.86-1,178,256.04-491,254.80

Finding the Fourth Proportional to 853,775.86, 1,178,256.04 and 491,254.80

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Solution

The fourth proportional to 853,775.86, 1,178,256.04 and 491,254.80 is: 677,957.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,775.86 : 1,178,256.04 = 491,254.80 : x
  2. Step 2: Convert to fraction form
    853,775.86/1,178,256.04 = 491,254.80/x
  3. Step 3: Cross multiply
    853,775.86x = 1,178,256.04 × 491,254.80
  4. Step 4: Simplify right side
    853,775.86x = 578,823,935,278.99
  5. Step 5: Solve for x
    x = 578,823,935,278.99/853,775.86
  6. Step 6: Final answer
    x = 677,957.72

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.